MEP permit drawings in Los Angeles, CA.

The City of Los Angeles enforces the California Building Standards Code (Title 24, 2025 edition since January 1, 2026) with Los Angeles city amendments. MEP drawings go through plan check at the Los Angeles Department of Building and Safety (LADBS).

• Building & residential — California Building and Residential Codes with LA amendments
• Electrical — California Electrical Code with LA amendments
• Plumbing — California Plumbing Code (UPC-based)
• Mechanical — California Mechanical Code (UMC-based)
• Energy — California Energy Code (Title 24 Part 6) and CALGreen

• City of Los Angeles — LADBS plan check
• LA County (unincorporated) — LA County Public Works, Building and Safety
• Long Beach, Pasadena & Glendale — each city's own building department
• Santa Monica, Burbank & Beverly Hills — each city's plan check, often with local reach codes
• Torrance, Inglewood & Santa Clarita — plus every LA-area jurisdiction

Los Angeles County has dozens of cities, each with its own building department and amendments. We confirm the exact jurisdiction from your address.

• Title 24 energy compliance — compliance forms that match the mechanical, plumbing and lighting sheets.
• ADUs — electrical service, panel capacity and HVAC sizing for accessory dwelling units.
• Seismic bracing — water heater strapping and equipment anchorage notes.
• CALGreen — EV-ready circuits and water-efficiency requirements.
• Restaurants — hoods, grease interceptors and gas piping coordinated for plan check.

• Electrical — power and lighting plans, panel schedules, load calculations and single-line/riser diagrams (California Electrical Code)
• Plumbing — fixture layouts, water supply sizing, DWV isometrics and gas piping (California Plumbing Code)
• HVAC / mechanical — duct layouts, equipment schedules, ventilation and Manual J/S/D load calculations (California Mechanical Code)
• Energy compliance — Title 24 Part 6 compliance documentation, CALGreen checklists and Manual J/S/D
• Fire protection — sprinkler layouts, hydraulic calculations and fire alarm plans (NFPA 13/13R/13D, NFPA 72) where your project needs them

Trade-specific details: electrical, plumbing, HVAC and fire protection permit drawings.

Commercial and many multifamily MEP drawings in Los Angeles need a California-licensed engineer's signature. Many single-family homes and ADUs can be permitted without one.

Engineers who seal drawings in California are licensed by the California Board for Professional Engineers, Land Surveyors, and Geologists (BPELSG). If your project needs sealed MEP drawings, we confirm during scoping whether a California-licensed engineer can seal your discipline and scope, and we put that in writing in your quote. If we can't arrange the seal for your project, we tell you up front, so you can have your own engineer of record review and seal the set. You never pay for drawings you can't submit.

1. Send your plans — upload architectural floor plans (PDF or DWG) on our quote page, by WhatsApp or by email.
2. Quick Zoom call (optional) — we confirm scope and the Los Angeles submittal checklist.
3. Fixed quote — price and delivery date in writing within one business day.
4. Drafting with updates — residential sets usually take 5–7 business days, light commercial 7–14, with progress updates on WhatsApp or email.
5. Submittal & plan-review comments — PDF and DWG files ready to upload; we revise for city comments at no extra charge until approval.